基于颤振试验数据分析的矩阵束方法性能研究  

Research on Numerical Performance of Matrix Pencil Based on Flutter Test Analysis

作　　者：谭博[1] 郑华[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《中国机械工程》2015年第2期233-237,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(11302175)

摘　　要：为将矩阵束引入颤振试验数据处理的工程应用领域,基于随机信号仿真,采用蒙特卡罗方法分析了该方法的数值性能,研究了样本长度、信噪比及计算参数对计算性能的影响,并在飞机机翼气弹模型的风洞颤振试验中进行了验证。与传统频域方法的比较分析表明,矩阵束方法性能良好,是一种可靠的模态参数估计方法。In order to apply MP algorithm into flutter test data processing, the characteristics were studied through Monte Carlo method, the effects of signal length, signal-noise ratio and parameters were mainly concerned. Then MP algorithm was tested with real collected data from physical experi- ments. The results show that MP is a valuable method to identify modal parameters for flutter test an- alyzses compared with traditional ways of data processing.

关 键 词：矩阵束 蒙特卡罗方法 模态参数识别 颤振试验数据分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]